News and notes from all around the TV landscape:- "The Good Wife" has booked Michael J. Fox for a return visit, but it isn't just for one episode this time. Fox will reprise the role of Louis Canning for a multi-episode arc at the end of the current season. This comes in the wake of "The Michael J. Fox Show" being canceled by NBC, but the "Good Wife" creators were optimistic at winter press tour that Fox could come back either way, since his self-titled show had already wrapped for the year. [TVLine]- Former "Happy Endings" star Zachary Knighton has booked a pair of gigs. He's joining NBC's "Parenthood" for a mutli-episode arc as a teacher at the school Kristina (Monica Potter) founded and will also star in a FOX comedy pilot called "Weird Loners," playing one of four social misfits who live in the same Queens townhouse. - Amy Poehler and Tina Fey will...